Wire chain link



July 31, 1923. 1,463,282

A. L. JOHNSTON, JR

WIRE! CHAIN LINK Filed Dec. 8, 1920 all? INVENTOR BY Q MM-M MQLLLI/ ATTORNEY Patented July 31, I923.

UNRTE sr'ra "rent OFFICE.

ANDREW LANGSTAIEF JOHNSTON, JR., OF NEW YORK, N. Y., ASSIGNOR, BY.MES1\TE ASSIGNMENTS, TO OFFNON CHAIN CORPORATION, OF NEW YORK, N'. Y., A COR-I PORATION OF DELAWARE.

WIRE CHAIN LINK.

Application filed December 8, 1920. Serial No. 429,072.

To all whom it may concern: Y

Be it known that I, ANDPEW LANGSTAFF JOHNSTON, J12, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in lVire Chain Links, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to wire chain links, and more particularly to such links bent from a single strand-of wire whose two ends form a double-strand eye.

It is an object of the invention to provide a simple, reliable chain in which the links are so shaped as to avoid picking up foreign matter and catching or cutting adjacent surfaces or parts.

It is another object of the invention to providean improved chain linkbent from a single length of wire and having an eye so coiled as to resist distortion or fracture under strain. I I 1 A further object of the invention 18 to 7 provide a chain link which will be structurline ll in Figure 1.

ally superior and functionally advantageous.

Other objects will be in part obvious and in part noted hereinafter.

In the accompanying part of this specification,-

Figure 1 is aside view of a portion of a chain embodying a preferred form of the invention, I

Fig. 2 is an edge view of the same;

Fig. 3 is an enlarged end-view of one of the links and Fig. 4 is an enlarged section taken on the The improvement consists particularly in the formation of the eye of each-link through which a succeedinglink is threaded.

Referring to the drawings, each link 1 is manufactured from suitable chain metal hav- 7 ing a round or other cross-section and is bent in a substantially rectangular formation to form a large loop which is threaded through the eye of'another link. In the present instance the eye of a link'is formed in the following manner:

The twosides of the large loop are bent inwardly, offset, and then looped in opposite drawing forming directions to form contiguous coils 2 and 3 substantially circular in shape. The free ends of these coils are further'bent to encircle and bind the neck of the coils, that is,

large loop and the eye of the link. The extremities 4t and 5 rest snugly against the neck of the coils, and as shown in the drawings, substantially lie within the contour of the wire forming the loop and the coils, soth'at no free ends are exposed. I

The method of forming the coils 2 and 3 is best shown in Figs. 3 and 4. The neck portion of each coil (the wire merging from the two sides of the main loop to form the coils) is substantially encircled by the free end of each coil so that the neck is gripped within the opposed U-shaped transverse ter-. Q

minals of the wire and lateral separation of the eyes or spreading of the link sides is ef-.. fectively prevented. The eyes are in conwithout the use of extra parts, and the free ends ofwire are guarded within the surfaces of the'coils so thatrecesses in which foreign. matter might be lodged and projecting'parts'.

7 link having rounded contours is provided which might damage adjacent surfaces are i avoided. a

Since alterations might be made in the above construction without departing from the spirit or scope of the invention, it is in tended that all matter contained in the above description or shown in the accompanying drawings shall. be interpreted as illustrative and not in a limiting sense. I

Having described my invention, what I claim as new and desire to secure by Letters Patent is 1. A chain link comprising a strand of material bent to form an elongated loop, the

ends of said strand being separately looped in directions opposite to each other to form contiguous coils, and each end eing bent to encircle the necks of both said coils.

2;. A chain link comprising a strand of material bent to form an elongated loop, the 7 ends of said strand being separately looped to form substantially circular coils, and Wrapped transversely about the necks of both coils so formed, every curve of each said end being parallelled and reinforced by a similar curve of the other end.

3.. A chain link comprising a strand of material bent to form a substantially recwithin re-entrant angles of the contour of said loop and said coils.

4. A chain link comprising a single strand of: material bent to form a main loop and an auxiliary loop, the plane of said auxiliary loop being substantially perpendicular to the plane of said main loop. ;the auxiliary loop being formed by bringing together the free ends of said main loop, bending said ends in opposite directions to form contiguous coils, and further bending said ends to encircle the neck of said coils in a plane substantially perpendicular to the planes of said main loop and said auxiliary loop.

In testimony whereof I my signature, in the presence of two Witnesses.

A. naussrarr JOHNSTON, JR.

Witnesses:

L. A. VVATROU, M. A. CASHIN. 

